Fix the cloak of grim bonuses

git-svn-id: http://svn.net-core.org/repos/t-engine4@1555 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/general/objects/world-artifacts.lua

@@ -774,7 +774,7 @@ newEntity{ base = "BASE_CLOAK",
 	material_level = 3,
 	wielder = {
 		combat_def = 10,
-		inc_stats = { [Stats.STAT_CUN] = 4, [Stats.STAT_CUN] = 3, },
+		inc_stats = { [Stats.STAT_CUN] = 4, [Stats.STAT_CON] = 3, },
 		talents_types_mastery = { ["cunning/stealth"] = 0.1, },
 
 	},